BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Re: Delphi causes GPF, other apps print OK          BorlandTalk.com Forum Index -> Delphi Reporting-Charting View previous topic :: View next topic   Author Message Franz-Leo Chomse Guest Posted: Mon Oct 20, 2003 5:32 pm    Post subject: Re: Delphi causes GPF, other apps print OK Quote: However, attempting to print from Delphi 5 causes a GPF linked to the ZSDEPL.DRV module (the printer driver). Label size is the right one. Printer is attached to the LPT1 port and it's the default printer. My printing code is as follows: You do not print a valid label description. All Zebra print files I know start with a CR LF sequence to clear the label buffer. Zebra printers expect a valid EPL/2 command sequence Regards from Germany Franz-Leo Back to top Jorge Alvarez Guest Posted: Mon Oct 20, 2003 5:50 pm    Post subject: Re: Delphi causes GPF, other apps print OK Quote: My printing code is as follows: You do not print a valid label description. All Zebra print files I know start with a CR LF sequence to clear the label buffer. Zebra printers expect a valid EPL/2 command sequence I see your point, but I believe this would be the windows driver responsability? And I think it's doing it OK because test lines can be printed out from other windows applications. Problem with Delphi is not that the lines are not being printed, it's the General Protection Fault :-( Thanks a lot, -Jorge Back to top Franz-Leo Chomse Guest Posted: Mon Oct 20, 2003 6:54 pm    Post subject: Re: Delphi causes GPF, other apps print OK Quote: I see your point, but I believe this would be the windows driver responsability? And I think it's doing it OK because test lines can be printed out from other windows applications. Problem with Delphi is not that the lines are not being printed, it's the General Protection Fault No. For the Zebra Label printer the only reason for the printer driver is to provide a printer spooler for serializing the output. The main problem in using a Zebra printer is to assure that you do raw printing. The other programs use the Windows printer driver which maps all input to plain text. With AssignPrn you indicates that you want RAW mode and have to provide the real command sequence. The Letter T is not even an allowed sequence identifier. Regards from Germany Franz-Leo Back to top Jorge Alvarez Guest Posted: Mon Oct 20, 2003 9:23 pm    Post subject: Re: Delphi causes GPF, other apps print OK Quote: I see your point, but I believe this would be the windows driver responsability? And I think it's doing it OK because test lines can be printed out from other windows applications. Problem with Delphi is not that the lines are not being printed, it's the General Protection Fault :-( No. For the Zebra Label printer the only reason for the printer driver is to provide a printer spooler for serializing the output. The main problem in using a Zebra printer is to assure that you do raw printing. I see. As a further test, I highlited a block of text from one of my units and attempted to print that block out from Delphi's IDE. Same GPF problem (Delphi crash.) This time I didn't request raw mode. I don't want to bitch, just try to understand what's happening. Thanks a lot, -Jorge Back to top Ignacio Vazquez Guest Posted: Tue Oct 21, 2003 2:15 am    Post subject: Re: Delphi causes GPF, other apps print OK Hello, Jorge! You wrote on Mon, 20 Oct 2003 16:23:30 -0500: Quote: As a further test, I highlited a block of text from one of my units and attempted to print that block out from Delphi's IDE. Same GPF problem (Delphi crash.) This time I didn't request raw mode. No, but the IDE may have. Quote: I don't want to bitch, just try to understand what's happening. I'm fairly certain that most people see your point of view, so don't sweat it. Try using Printer.Canvas.TextOut and seeing if you can send some text to it that way. Cheers. Ignacio Back to top Franz-Leo Chomse Guest Posted: Wed Oct 22, 2003 9:27 am    Post subject: Re: Delphi causes GPF, other apps print OK Quote: I see. As a further test, I highlited a block of text from one of my units and attempted to print that block out from Delphi's IDE. Same GPF problem (Delphi crash.) This time I didn't request raw mode. I don't want to bitch, just try to understand what's happening. Very bad written driver. The properties returned by the driver do not match the printer at all. I even had a driver which reported to be able to use color. The Label printer use EPL/2. This is a pure text format. They assume that the sequences are build by the application. The only task for the driver is to let the OS activate a spooler to serialize the usage and to block the port. The drivers seem to be just recompiled demo versions. You need to check the EPL/2 manual which is on the driver CD and enter one of the example programs. Due to the mixture of barcodes, boxes, text etc there is no way to access the printers without paying much much more for software than for the hardware Regards from Germany Franz-Leo Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> Delphi Reporting-Charting All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.